What happens in a change in temperature as it is heated

Answers

Answer 1
Answer: It increases in temperature

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Omg, give me some advice about phizics i have to study it

How can resistance be useful and where can they be useful?

Answers

-- Resistance can be useful among the population of a repressive government.
Although it can be dangerous for those who resist, it can also exert pressure
against the regime to alter its repressive practices.

-- Resistance can also be useful in electronic circuits. "Lumped" components with
known numerical values of resistance are used to divide voltage, limit current, and
dissipate controlled amounts of electrical energy. 

The force of repulsion between two identical positive charges is 0.800 N when the charges are 0.100 m apart. Find the value of each charge.

Answers

Answer:

Value of each charge is given as

q = 9.43 * 10^(-7) C

Explanation:

As we know that electrostatic force between two charges is given as

F = (kq_1 q_2)/(r^2)

here we know that

q_1 = q_2 = q

F = 0.800 N

r = 0.100 m

now we have

F = ((9* 10^9) q^2)/((0.100)^2)

0.800 = 9* 10^(11) q^2

q = 9.43 * 10^(-7) C

What does balanced and unbalanced forces have to do with newtons laws of motion

Answers

Newton's second law of motion involves the effect of force acting on a mass.
It has to be understood that this actually means the combination of any and
all individual forces acting on it, with their individual strengths and directions
all added together.

When all the individual forces acting on an object add up to zero, then the
whole group of forces is said to be 'balanced'.

When all the individual forces acting on an object don't add up to zero, then
the whole group of forces is said to be 'unbalanced'.

Notice that there's no such thing as 'a balanced force' or 'an unbalanced force'.
It's a group of two or more forces that's balanced or unbalanced.



A train takes ms eaddy 200 miles north and 150 miles south. The total trip took 3.5 hours what was the average velocity of the train in MPG?

Answers

The whole point of this problem is to check how well you understand
the definitions of a few important quantities, like velocity, speed, distance,
displacement etc.

Before we begin, I just want to mention that 'MPG' is not a unit of either
velocity or speed, but I think I know what you mean.

-- For some reason, Ms. Eaddy rode 100 miles north on the train, then
stayed aboard while the train turned around and took her 150 miles south.
The total distance she rode was (100 + 150) = 250 miles.  But she ended up
50 miles south of where she began.

-- Displacement for the whole trip = distance and direction from the start point
to the finish point.

Displacement = 50 miles south

-- Average velocity = (displacement) / (time)

50 miles south / 3.5 hours = 14.29 miles per hour south

which phenomenon is most directly responsible for earth’s magnetic field? Earth spinning on its axis. The moon's gravitational pull on earth? Earth's revolution around the sun? The moon's revolution around earth?

Answers

Earth spinning on its axis

The rate at which work is done is

Answers

Answer:

Power

Explanation:

I just took the quiz

The definition for Power =   Work Done / Time taken

Hence the rate at which work is done is called Power.


Power is measured in Watts. Work done is measured in Joules and Time taken is in Seconds.